The axles were 6mm in diameter and were reduced to 5mm to suit the wheels. Two of the wheels had a axle was Loctited in place.

The

eccentrics were machined from steel bar. There were two parts to each assembly (the eccentric and the stop collar) to allow the locomotive to reverse.

The eccentric straps were made from a piece of brass bar bored to suit the eccentrics and with an arm soldered to connect to the rocking shaft. The straps were not of the split type so would only be removable by removing a driving wheel and sliding out the axle.